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physics

View-Master

View-Master is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand View-Master rather than just read about it. In short: View-Master is the trademark name of a line of special-format stereoscopes and corresponding View-Master "reels", which are thin cardboard disks containing seven stereoscopic 3-D pairs of small transparent color photographs on film. It was originally manufactured and sold by Sawyer's.

View-Master — main illustration
View-Master — illustration

Key takeaways

  • View-Master belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect View-Master to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of View-Master from memory before moving on to harder problems.

Reference excerpt

View-Master is the trademark name of a line of special-format stereoscopes and corresponding View-Master "reels", which are thin cardboard disks containing seven stereoscopic 3-D pairs of small transparent color photographs on film. It was originally manufactured and sold by Sawyer's. The View-Master system was introduced in 1939, four years after the advent of Kodachrome color film made the use of small, high-quality photographic color images practical. Tourist attraction and travel views predominated in View-Master's early lists of reels, most of which were meant to be of interest to users of all ages. Most current View-Master reels are intended for children. There are over 4300 different View-Master reels.

History

1919–1956: early photo services

Edwin Eugene Mayer worked as a pharmacist at Owl Drug store in downtown Portland, Oregon, after serving in the U.S. Army in World War I. He built up a photo-finishing business there, and bought into Sawyer's Photo Finishing Service in 1919 with the help of his father August Mayer, his fiancée Eva McAnulty, and her sister Vi McAnulty. Edwin described how he started the business in a letter dated April 1, 1954: "Suffice to say that in 1919, what little it was, was purchased with borrowed ($3,500) money from Dad, aided by about $1,600 in insurance money Eva got when her father died and which was left in permanently, and $1,600 borrowed from Vi and repaid, along with Dad's notes, within a few years." As the business grew, Ed Mayer incorporated in about 1926, taking on partners Harold and Beulth F. Graves, Thomas and Pauline Meyer, and Augusta and Raymond F. Kelly, renaming the business Sawyer Service, Inc. The company relocated to a large two-story building at 181 Ella St., near Morrison Street in Portland, Oregon. The company was producing photographic postcards and album sets as souvenirs by 1926, when Harold Graves joined Sawyer's. Graves handled marketing for the products while Mayer ran the business. Later, photographic greeting cards were added to the Sawyer's product line, marketed to major department stores. Sawyer's was the nation's largest producer of scenic postcards in the 1920s and the future View-Master viewer eventually became an extension of the two-dimensional cards.

The company took the first steps towards developing the View-Master after Edwin Mayer and Graves met with William Gruber, a player-piano technician of German origin trained by Welte & Sons and an avid photographer living in Portland. Mayer and Gruber had both developed devices for viewing stereo images, but Gruber had made up a stereo imaging rig out of two Kodak Bantam Specials mounted together on a tripod. He designed a machine that mounted the tiny pieces of Kodachrome color transparency film into reels made from heavy paper stock used by the player pianos he serviced. A special viewer was also designed and produced. He had the idea of updating the old-fashioned stereoscope by using the new Kodachrome 16-mm color film, which had recently become available.

New business venture

A View-Master reel holds 14 film transparencies in seven pairs that create the seven stereoscopic images. The components of each pair are viewed simultaneously, one by each eye, thus simulating binocular depth perception. According to a 1960 court document, the Gruber-Sawyer partner venture began from that first meeting in 1938. Thereafter, Ed Mayer negotiated with Gruber while production methods and some marketing were developed. A formal agreement was signed in February 1942 between Gruber and Sawyer partners, doing business as Sawyer's. Mayer and people within the Sawyer's organization were uncertain about what to call the new product, but they eventually settled on the name of View-Master. The View-Master brand name eventually came to be recognized by 65% of the world's population, but Gruber disliked the name, believing that it sounded too much like Toast-Master, Mix-Master or some other kitchen appliance. The View-Master was introduced at the 1939 New York World's Fair, marked "Patent Applied For". It was intended as an alternative to the scenic postcard, and was originally sold at photography shops, stationery stores and scenic-attraction gift shops. The main subjects of View-Master reels were Carlsbad Caverns and the Grand Canyon. The View-Master was marketed through Mayer's photo-finishing, postcard and greeting card company Sawyer's Service, Inc., known eventually as Sawyer's, Inc. The partnership led to the retail sales of View-Master viewers and reels. The patent for the viewing device was issued in 1940, and this original model came to be called the Model A viewer. Within a very short time, the View-Master supplanted the postcard business at Sawyer's.

Expansion Mayer gave details of the company's expansion in a letter dated April 1, 1954:

In 1939, 20 years after starting the business, we had, by dint of hard work and long hours and frugal living, accumulated a business (Sawyer's) worth about $58,000.00 and Western Photo Supply Co. owning the buildings, worth about $30,000.00. The above figures were for the total business and buildings owned by the Kellys, Graves, Mayers and Meyers. In 1946, we had already grown a lot from 1939, and Sawyer's made a lease with Western Photo Supply Co., they to build and lease two new buildings to Sawyer's, in addition to the two we already had. At this point, Sawyer's also decided to change its structure from a partnership to a corporation, for various good reasons, one of which was to permit our children to participate in the stock ownership. In the 1940s, the United States military recognized the potential for View-Master products for personnel training, purchasing 100,000 viewers and nearly six million reels from 1942 to the end of World War II in 1945. After the development of the View-Master, Sawyer's, Inc. moved into a new building at 735 S.W. 20th Place in downtown Portland. The company also occupied a building next door at 740 S.W. 21st Avenue. In 1951, Mayer and his Sawyer's partners built a large plant in Washington County, Oregon. After moving to the new plant, Mayer leased the building on 20th Place to Oregon Television, Inc.

… excerpt ends here. Continue reading the full article.

Illustrations

View-Master illustration
View-Master: A View-Master reel from 1948
A View-Master reel from 1948
View-Master: A View-Master Model E of the 1950s
A View-Master Model E of the 1950s
View-Master: View-Master Model F
View-Master Model F
View-Master: A model G View-Master viewer from the last years of the Sawyer's era[13]
A model G View-Master viewer from the last years of the Sawyer's era[13]

Worked examples

Example 1 — a first encounter with View-Master

Start with the simplest possible case. Write down what View-Master claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to View-Master before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about View-Master ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of View-Master

In research
View-Master appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses View-Master in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
View-Master is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940s toys, Fisher-Price, Mattel, so understanding it makes those chapters shorter.
In everyday life
Look for View-Master outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study View-Master in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what View-Master means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain View-Master out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is View-Master in simple terms?

View-Master is the trademark name of a line of special-format stereoscopes and corresponding View-Master "reels", which are thin cardboard disks containing seven stereoscopic 3-D pairs of small transparent color photographs on film. It was originally manufactured and sold by Sawyer's.

Why does View-Master matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study View-Master?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on View-Master.

Tags

  • 1940s toys
  • Fisher-Price
  • Mattel
  • Optical toys
  • Photography equipment
  • Products introduced in 1939
  • Stereoscopic photography

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